求翻译：京杭运河北起徐州蔺家坝，南至扬州六圩口，是京杭运河全线货运量最大的航段之一，是支撑江苏经济社会发展和北煤南运的重要生命线。是什么意思？

Transported from the Beijing-Hangzhou Hebei Xiangjiaba Xuzhou Lin, Yangzhou six Weikou south, Beijing-Hangzhou Grand Canal is the largest leg of cargo across the board is to support economic and social development of Jiangsu and the importance of coal from north to south lifeline.

Xuzhou, Beijing-Hangzhou Canal rushes from North and South to Yangzhou's mouth, and is 6 Expression Beijing-Hangzhou Canal along one of the largest air cargo volume one paragraph, and is supporting Jiangsu economic and social development and coal from the north south trading a vital lifeline.

North the Beijing Hangzhou canal the Hsuchou Lin village, the winter solstice Yangchow six dike mouths, are one of Beijing Hangzhou canal entire line transported goods volume biggest navigation sections, is supports the Jiangsu economic society development and the northern coal shipped south importa

Beijing-Hangzhou Canal North Xuzhou Lin Jiaba, South to Yangzhou liuwei, are all volume one of the largest sector of Beijing-Hangzhou Grand Canal, is supporting important lifeline of Jiangsu's economic and social development and beimeinanyun.

Beijing-Hangzhou Canal North Xuzhou Lin Jiaba, South to Yangzhou liuwei, are all volume one of the largest sector of Beijing-Hangzhou Grand Canal, is supporting important lifeline of Jiangsu's economic and social development and beimeinanyun.